Machine for making snap fasteners



H. H. CANNON. MACHINE FOR MAKING SNAP FASTENERi APPLICATION mm mm. 24. 1922.

1,436,476. Patented Nov. 21, 1922.

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ATTORNEYS H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

APPLICATOON flLfD APR 24 I922.

Patented Nov. 21, 1922.

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H. H. CANNON. MACHINE FOR MAKING SNAP FASTENERS.

APPLICATION FILED APR, 24, 1922.

Patented Nov. 21, 1922..

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MACHINE FOR MAKING SNAP FASTENERS.

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H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

APPLlCATtDN Hkfl APR 24 1922.

1 ,436,476. Patented Nov. 21, 1922.

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H. H. cmmm, MACHINE FOILMAKING SNAP FASTENERS.

APPLICATION FILED APR. 2 4. I922- Patented Nov. 21

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H.H.CANNON. MACIHNE FOR MAKING SNAP FASTENERS.

APPLICATION FILED APILZA. I922. 1,436,476. Patonbed Nov. 21, 1922.

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H. H. CANNON. MACHINE FOR MAKlNG SNAP FASTENERS.

APPLICATION FILED APR 24 1922 A Patented Nov. 21, 1922.

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ATTORNEYS.

H. H. CANNON. MACHINE FOR MAKING SNAP FASTENERS.

APPLICATION FILED APR 24, 1922- Patented Nov. 21, 1922.

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H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

APPLICAUDN FILED APR 24, I922. 1,436,476. Patented v. 21, 1922.

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H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

Patented Nov. 21, 1922.

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APPLICATION FILED APR 24. I922.

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H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

APPLICATION mm APR. 24, 1922. 1,436,476. Patented-NOW 21, 1922.

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ATTORNEYS.

H. H. CANNON.

MACHINE FOR MAKING SNAP FASTENERS.

APPLICATION FILED APR 24, 1922.

1,436,476. Patented Nov. 21, 1922.

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H. H. CANNON. MACHINE FOR MAKING SNAP FASTENERS.

APPLICATSONIFHELYAPR 24. 922. 1,436,476. Pa ented Nov. 21, 1922.

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H H CANNON MACHINE FOR MAKING smr FASTENERS.

APPUCATION FILED APRYZ4, I922. 1,436,476. Pamnted Nov. 21, 1922.

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MACHINE FOR MAKING SNAP FASTENERS.

APPLICATION mm APR.24, 1922.

1,436,476. n ed Nov. 21, 1922.

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Patented Nov. 21, 1922.

HENRY H. CANNON, OF

PHILADEL CORPORATION OF NEW YORK.

PHIA, PENNSYLVANIA, ASSIGNOR TO REGAL BUTTON WORKS, INCORPORATED, OF PHILADELPHIA, PENNSYLVANIA, A

MACHINE FOR MAKING SNAP FASTENERS.

Application filed April 24, 1922. Serial No. 556,238.

My invention consists of a of Philadelphia,

I, HENRY H. CANNON, a

in the tate of a new and usep Fasteners, of

residin a specification.

novel machine for expeditiously and automatically making the socket member of two-part snap fasteners, said socket members usually consisting of a. sheet metal disk having its central portion pressed out to form male member, is cupped or flanged and ly to confine a closing a socket or fewhich at its peripheral edge then rolled inwardsocket spring within the cup, said spring having a pair of internal legs passing through lateral slits positioned in the socket or female member in ball such manner that they closely embrace a or male member carried by the counterpart of the socket member to hold the button within the socket.

By my novel machine, I have structure wherein the expense turing is in the number of transfer-rm roduced a o manufacreduced to a minimum and whereg elements and their extent of movement or travel is also reduced to a minimum,

being entirely in rectilinear lines, my invention being capable of producing snap fasteners at the rate of about one hundred and twenty five a minute and having an output and capacity in excess of other machines.

To the above ends, my invention consists of a novel stri prising a rock s feeding mechanism, comaft, which is positively actuated by a novel cam mechanism, having means for quickly adjustin 0 the oscillation of said rock s tuatin pawl, spring presse the extent of aft and the acd means being provi ed to cause said pawl to positively enga the strip during the further consists of means for the drawing punches, which are cam and lever mechanism,

positively provision being feeding operation. novel actuating and blanking actuated by a made for readily effecting the adjustment of the drawing punch by an carried at the top ing punch being also readily of said lever,

adjustable bar said blankadjustable.

It further consists of a novel construction of right and left-hand shell carriers, whose movements are in a rectilinear line towards the center of the -machine, the extent of travel of the formed shell from the blankin and drawin punches being only two an one-half inc es in a rectilinear line, whereby the speed and capacity of the machine are greatly increased.

It further consists of a novel cam and slide mechanism for effecting the actuation of said shell carriers at the proper intervals.

It further consists of a novel manner of effecting the formation and transfer of the finished spring to its oint of delivery into the formed shell, the nished spring having an extent of travel of only one inch from its point of formation into the formed shell.

It further consists in a novel construction of a vertical moving former, a clamping member coacting with the front thereof, and sprin forming jaws, one of said jaws lying provi ed with a bell mouth for the reception of the free end of the spring during the initial operations thereon.

It further consists in a novel manner of forming the legs of the spring by a back former of novel construction, which latter is provided with a plurality of forward movements whereby the finished springs of standard and uniform sizes are produced in a rapid and expeditious manner.

It further consists of novel mechanism for effecting the actuation of the jaws carr ing the forming tools and a novel manner 0 operating the vertical former.

It further consists of a novel manner of effecting the desired adjustments of the opening and closing of the jaws which carry the sp'rlng forming tools.

It further consists of a novel manner of transferring the formed shell to a point 1n vertical alignment with the spring pusher, and anovel manner of actuating the sprlng pusher and propelling the shell with the s ring therein in a right line to a point in a i ment with the rolling punch.

fi further consists in a novel construction of the spring pusher. which is provided with a shoulder near the bottom thereof to effectively engage the curved portion of the spring during the act of assembling the latter within the formed shell.

It further consists in a novel manner of mounting and actuating the rolling punch, whereby the final rolling operation upon the upper ed e of the shell is effected.

It furt er consists of novel means for initiall effecting the descent of the rolling punc upon the top of the formed shell wit the assembled spring therein and novel means for completing the rolling operation by the upward movement of the lifter towards said rollin punch.

Itfurther consists of a novel construction of a gate positioned in the center of the machine, said ate serving as a combined support or guid e for the drawing and blanking punches, the spring pusher and the rolling punch, said blanking punch and rolling punch being secured in said gate and moving in unison therewith, while the drawing punch and the spring pusher are capable of independent reci rocator movements within said gate but lndepen ent thereof.

It further consists in the novel construction of a gate, a rolling punch fast therein and movable in unison with said gate, and a stationary vertical stripper co-operating with said rolling unch, in conjunction with a laterally movable horizontal forked stripp It further consists of other novel features of construction and advantage, all as will be hereinafter fully set forth and pointed out in the' claims.

For the purpose of illustrating my invention, I have shown in the accompanying drawings, certain forms thereof which are at resent preferred by me, since the same wil give in practice satisfactory and reliable results. It is to be understood, however, that the.:various instrumentalities of which my invention consists may be variously arrangedand organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a front elevation of a snap fastening machine, embodying my invention.

Figure 2 represents a right hand side view of the machine seen in Figure 1.

Figure 2 represents partly in section, a plan view of one of the levers seen in Figure 2, showing the manner of adjusting the bar on the upper end of said lever, which actuates the plunger of the drawing punch.

Figure 2" represents a side elevation of Figure 2.

Figure 3 represents a plan view of the machine. certain of the parts being shown in section.

Figure 3' represents an end view of the right hand slde of Figure 3.

Figure 4 represents a vertical section on line 44 Figure 3, certain of the parts be ing shown in elevation.

igure 5 represents a vertical section on line 5- 5 Fi re 3, showin particularly the mechanism or actuating 51c shell carriers, the blanking and drawing punches, the spring pusher, the rolling punch, strippers and lifter.

Figure 5 represents a side elevation 01 the upper portion of Fig. 5.

Figure 6 represents a section on line 6-6 Figure 3, showing the wire feeding and clamping mechanism and the former actuatin mechanism.

igure 7 represents on an enlarged scale a portion of the mechanism seen at the left of Figure 6.

igure 7 represents a section on line 7-7" Figure 7.

Figure 8 represents a section on line 8-8 Fi ure 7.

igure 8" represents a perspective view of the throw out for the wire and its support seen in Figures 7 and 8.

Figure 9 represents a section on line 9-9 F'gure 3, showing the mechanism for operating the spring carrier.

Figure 9 represents on an enlarged scale, the mechanism for effecting the intermittent clamping of the wire.

Figure 10 represents a perspective view in detached position of the spring carrier and its adjuncts.

Figure 11 represents a section on line 1111 Figure 3, showing the actuating mechanism for the wire clamping device coacting with the former.

Figure 12 represents on an enlarged scale a section on line 1212 of Figure 3, showing the mechanism for actuating the rock shaft carrying the strip feeding pawl.

Figure 13 represents on an enlarged scale a section on line 13-13 of Figure 3, showing the strip feeding mechanism.

Figure 14 represents on an enlarged scale a section on line 1414 of Figure 13, showing the guide and die block for the strip.

Figure 15 represents a perspective view showing the pawl for feeding the metal strip, the relative positions of the drawing and blanking punches thereto, the drawing and blanking die, and the position of the shell carrier for receiving the finished shell.

Figure 16 represents on an enlarged scale a lan view of the strip seen in Figure 15.

igure 17 represents a side elevation of Figure 16.

Figure 18 represents a sectional view, showing the relative position of the blanking punch and drawing punch and their adjuncts at the first step of the operation of making the cupped shell.

Figure 19 represents a sectional view simi- 

